Process of treating ores.



PATENTED MAR. 27, 1906. 0'. HIBAKER & A. w. BURWELL.-

PROGBSS'OF TREATING 0113s.

APPLICATION 11.51) JUNE 5.190s.

UNITED STATES PATENT orrron.

' CHARLES BAKER AND'ARTHUR w. B RWELL', oF-eLEvnLAND; onto.

' I PRocEss'oF TREATING o E-s. i

L the following is a specification;-

. wise.

United same, residing at Cleveland, in the ed drum constructed of or lined with material resistant to chlorinandsub ected therein.

ingsulfur in a physical state which will dereference is madeto the accompanying drawmg, wherelma preferred form of apparatus 18 To all LII/MINI, I'l' um/y concern." Be it known that we, (liIARLEs E. BAKER. and ARTHUR W, B'unwnLL, citizens of the county ofCuyahoga and State of Ohio, have invented'certi'iin new and useful Improvements in Processes of Treating Ores, of which in our Patent No. 741,439, datedOotober 13, 1903, we have described and claimed a process of treating ores containing a metal or metals in combination with sulfur or other metalloid' which consists in; combining the metal and mela'lloid with chlorin and supplyingsuflicieni hpat to vaporize and separate the metalloid. chlorid. We have now discovered that under proper conditions we mayqso ing'srmarated in elemental state. The term ore. is employed to include concentrates,

matte, and other material containing a metal or metals-and a i'netalloid or metalloids in combination. The process will be described as applied to the treatment of'a sulfid ore.

- The suitably crushed and preferably dry sullid. ore is charged into a revolubly-mountwith or without theapp'lication'of heat to chlorin in quantitysuflicient'to combine with the metals only of the ore, thereby separatpend upon the'temperature. The drum is preferably rotated throughout the operation and is provided with flint-pebbles or equivalent refractory balls, which serve to pulverize the ore, to remove any coating or incrusta tion which may forimand to break up anylumps or aggregates consisting of particles bound together by meltedsulfur or other- The liberated sulfur remains mixed with the gan 'ue and may berecovered by melting, disti lation, or-inany other suitable n'ianncr. y For a full unders'tanding of our invention shown in vertical longitudinal section, 'theore-drum being shown in elevation with parts broken away. v

The apparatus shown comprises a revoluble drum 1, which may be of bOilGIfiIOH lined,- asindicated at 2, 'witha material unaffected Specification of Letters Patent. Patented-March 27, 1906. Application filed Jane 5, 1905. Serial Rim 263,824.

by the chlorin, such as leader a refractory enamel or clay composition The drum has hollow trunnions3 4, similarly lined and supported in journal-boxes 5, carried by standards 61 A gear wheel 7 forrotating the drum is securedon trunnion 4. A suitable opening 8 is provided for filling and dischar ing the" drum. The druln ispreferab y mounted within a casing 9, which i'si convenr iently of boiler-iron, having a door l O and covered with asbestos or otherheatdnsulator.

"1 1 flues 12 .13 serving for'the introduction and escape .of heating-gases when heat is ap-' plied. I

. The ore or charge under treatment is indicatedat 14,.and. 15 15 are ballsor pebbles, preferably of a hard and refractory rock,- as

flint, serving during the rotation-of the drum to pulverize the ore; to remove therefrom any coating or incrustation, and to prevent the formation of lumps during the reaction. The result of so treating the charge during the progress of the reaction is to continually expose 'resh. reacting surfaces andf'to permit the com lete chlorination of'.'thjel]niefial or metals of the ore-with such a limited-quantity of chlorin that no substantial amount of the chlo'rid of the metalloid is produced.

A separation between'the metallic chlorid and the metalloid may be effected in an y desired manner. Thus the metallic chlorid may be leached out by means of any appro priate and well-known solvent, the netalloid being afterwardrecovered from the ga'ngne,

or in case of sulfid ores the sulfur may bedistilled from the metal chlorids and the latter subsequently separated from the gangue. At the low temperature requisite for the distillation of sulfur no appreciable an'iount of. the metallic chlorids will be reoonverted into sulfids. i

We clair 1. The process which consists in reacting.

*With chlorin on a pulverulent ore containing a metal or metalsand a metallo'idyprodlwing the chlorid of the metal or metals of the ore and recovering the metalloid in elemental state,- substantially as described.

The process which consists inreacting pre sol

with chlorin on-a ulverulent sulfid ore, ducing the chloricl of the metal ormeta the ore, and recovering the sulfur in ele meutal state, substantially as described.

. A 3. The process :which consistsin reacting v with chlorin onen ore containing! 9' metal and In testimony whereof We affix our signsa metallo1d,'and elmulteneously ae'ljedmg the tu'res m presence of two witnesses. charge to exposefregah reacting surfaces, subi. i i CHARLES- E. BAKER stantmlly as described.

.4; The process which eonsist's in reacting l ARTHUR BURWLLL with chlorm on a sulfid ore and simultane- Witnesses:

ously. abrading the charge to expose fresh re- 0. A. DIEHL, acting surfaces, substantially as described. I J. L. MALM. 

